bundesliga.com rounds up some of the players' post-match thoughts...
Marco Reus: We've still got four games left, so it's important we don't let our performance levels drop and keep improving. We also want to take the DFB Cup back to Dortmund, so we mustn't rest on our laurels. We have to keep going.
Nuri Sahin: You see bad back-passes all over the world. I've seen it a thousand time on TV and now I've experienced it. It's an experience I didn't necessarily want, but that's football.
1. FSV Mainz 05
Shinji Okazaki: It's a shame we lost the match despite scoring twice. It's a bit of a dampener after equalling Shinji Kagawa's Bundesliga record with my 13th goal of the season. I'll try and score more in the last few games so we can win again and I can beat his record.
Nikolce Noveski: Dortmund are in great form at the moment and they played very well again today. We wanted to play better than we did, but we didn't play well enough today, in all areas of the pitch. If you look at the game as a whole, Dortmund deserved to win. We have to improve considerably against Nürnberg next week.